Finding the Third Proportional to 28,736 and 43,139

Step by Step Solution

1. Step 1: Write the proportion equation
   28,736 : 43,139 = 43,139 : x
2. Step 2: Convert to fraction form
   28,736/43,139 = 43,139/x
3. Step 3: Cross multiply
   28,736x = 43,139 × 43,139
4. Step 4: Simplify right side
   28,736x = 1,860,973,321
5. Step 5: Solve for x
   x = 1,860,973,321/28,736
6. Step 6: Final answer
   x = 64,761.04